#include <stdio.h>
#include <string.h>
int mystrlen(char *s) {
    int count = 0;
    while (*s != '\0') {
        count++;
        s++;
    }
    return count;

}

char *mystrcpy(char *dest, const char *src) {
    char *ptr = dest;
    while (*src != '\0') {
        *dest = *src;
        dest++;
        src++;
    }
    *dest = '\0';
    return ptr;
}
int main() {

    return 0;
}